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C Pointers to struct

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SAMER SAEID answered on May 15, 2021 Popularity 9/10 Helpfulness 1/10

answer C Pointers to struct

related c assign pointer to struct

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C Pointers to struct

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-1

struct name {
    member1;
    member2;
    .
    .
};

int main()
{
    struct name *ptr, Harry;
}

Popularity 9/10 Helpfulness 1/10 Language c

Source: Grepper

Tags: c pointers struct

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Contributed on Jun 12 2022

SAMER SAEID

0 Answers Avg Quality 2/10

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c assign pointer to struct

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// setting a pointer to a struct in C
// and set value by pointer
#include <stdio.h>
#include <stdbool.h>

// a struct called airplane
typedef struct
{
    int fuel;
    double speed;
    bool landing_gear_down;
} airplane;

int main()
{
    // make a pointer
    airplane *Hummingbird; // *Hummingbird is now a pointer and it can be assigned to point at a struct of type airplane.

    // this creates a struct of type airplane and assigns it a name of cessna and initializes it
    airplane cessna = {50, 155, true};

    Hummingbird = &cessna; // now assign the pointer to the struct address

    // you can now call data types / variables via the pointer
    (*Hummingbird).fuel; // this is a little messy
    Hummingbird->speed;  // this is clean and understandable

    printf("\nthe cessna has %d liters of fuel", Hummingbird->fuel);

    // set the value by pointer

    Hummingbird->fuel = 15;

    printf("\nthe cessna has %d liters of fuel", Hummingbird->fuel);

    (*Hummingbird).landing_gear_down = false;
   // or 
  	Hummingbird->landing_gear_down = false;

    if (Hummingbird->landing_gear_down == false)
    {

        printf("\nlanding gear is up");
    }
    else
    {

        printf("\nlanding gear is down");
    }
};

Popularity 9/10 Helpfulness 4/10 Language c

Source: Grepper

Tags: assign as

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Contributed on Apr 09 2022

Dirty Moose

0 Answers Avg Quality 2/10

struct pointer c

Comment

#include <stdio.h>
#include <stdlib.h>
struct person {
   int age;
   float weight;
   char name[30];
};

int main()
{
   struct person *ptr;
   int i, n;

   printf("Enter the number of persons: ");
   scanf("%d", &n);

   // allocating memory for n numbers of struct person
   ptr = (struct person*) malloc(n * sizeof(struct person));

   for(i = 0; i < n; ++i)
   {
       printf("Enter first name and age respectively: ");

       // To access members of 1st struct person,
       // ptr->name and ptr->age is used

       // To access members of 2nd struct person,
       // (ptr+1)->name and (ptr+1)->age is used
       scanf("%s %d", (ptr+i)->name, &(ptr+i)->age);
   }

   printf("Displaying Information:\n");
   for(i = 0; i < n; ++i)
       printf("Name: %s\tAge: %d\n", (ptr+i)->name, (ptr+i)->age);

   return 0;
}

Popularity 10/10 Helpfulness 3/10 Language whatever

Source: www.programiz.com

Tags: c

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Contributed on Dec 23 2021

Evil Emu

0 Answers Avg Quality 2/10

return pointer to struct in C

Comment

typedef struct {
  char name[20];
  int age;
} Info;

Info* GetData() {
  Info *info;

  info = (Info *) malloc( sizeof(Info) );
  scanf("%s", info.name);
  scanf("%d", &info.age);

  return info;
}

Popularity 10/10 Helpfulness 2/10 Language c

Source: cboard.cprogramming.com

Tags: c

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Contributed on May 15 2021

Proud Pintail

0 Answers Avg Quality 2/10

C Pointers to struct

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